3-wavelength anti-reflective coating

Optical thin-film filters are important optical components designed to transmit and reflect light at specific wavelengths. Optical filters have the troublesome characteristic of "angle dependence," where the transmission and reflection properties change depending on the observation angle and the angle of incidence. This property can be both an advantage and a challenge depending on the usage conditions of the filter. In this article, we will explain in detail the reasons for the angle dependence of optical thin-film filters and its effects, as well as practical considerations and countermeasures. 1. Basics of optical thin-film filters and angle dependence 2. What is angle dependence? 3. Effects of angle dependence and application examples 4. Countermeasures and design considerations for angle dependence A message to designers - from a film manufacturing company For more details, please visit our website.

The Kansai Expo is being held as an international event where cutting-edge technologies, services, and cultural expressions from around the world gather under the grand theme of "Designing a Future Society Where Life Shines" (as of the article dated September 29, 2025). From AI-driven autonomous robots and next-generation mobility to immersive video experiences, space exploration technologies, and future medical and healthcare innovations, a wide range of innovative technologies are being showcased right before the eyes of visitors, providing a valuable opportunity to experience the vision of society's future up close. In our series, we have focused on optical thin films and fine pattern processing (metallization) technologies, which function as the unsung heroes behind these cutting-edge technologies, introducing them over seven installments. Optical thin films enable precise light control, such as reflection, transmission, and wavelength selection, playing an essential role in various advanced devices like sensors, cameras, projectors, and space equipment. Meanwhile, fine pattern processing serves as a foundational technology that supports the high precision of electronic devices, biosensors, and next-generation displays by controlling structures at the nanometer level. For more details, please visit our company website.

The signature pavilion of the 2025 Osaka-Kansai Expo, "The Future of Life," is a place that directly confronts the fundamental questions humanity has long grappled with: "What is life?" and "Where does humanity reside?" Here, androids (humanoid robots) created using the latest artificial intelligence and intricate modeling technology will appear before visitors as beings that transcend mere machines. Visitors may find themselves pausing to ponder, "Is this human, or is it a machine?" as they engage with the android's gaze, gestures, and expressions. The encounter with androids that not only resemble humans but also possess conversational and emotional capabilities will provide an experience that is unlike anything encountered in daily life. In that moment, we will feel the boundary that separates humans and machines becoming blurred. [1] What if we use optical filters as the "sensory organs" of the androids? [2] Questions posed to society [3] An image of coexistence between androids and humans in future society [4] A future of coexistence depicted through technology For more details, please check our company website.

At the 2025 Osaka-Kansai Expo, under the theme "Designing a Future Society Where Life Shines," various cutting-edge technologies, including space development, will be showcased. Several exhibits, including the "American Pavilion" and the "Gundam Pavilion," will focus on the theme of "space," allowing visitors to experience the presence of extraterrestrial worlds. These presentations go beyond mere entertainment and are deeply connected to the ongoing trends in space exploration and the space industry. Current space development is expanding beyond traditional satellite and probe operations to include a variety of missions such as deep space exploration, lunar base construction, manned missions to Mars, space resource mining, and space solar power generation. Many of these plans require optical technologies that can precisely control light across a wide range of wavelengths, including visible light, ultraviolet, and infrared. Among these, optical thin films are foundational technologies that support observational instruments, communication devices, and energy utilization systems. [1] The Intersection of Space Development and Optical Thin Films [2] The Functions of Optical Thin Films Required by the Space Environment (Technical Edition) [3] Optical Thin Films Active in Space (Case Study Edition) [4] -Future Outlook- The Expanding Role of the Space Industry and Optical Thin Films For more details, please visit our company website.